Answer:
1/2
Step-by-step explanation:
7/10 - 2/10 = 5/10
5/10 simplifies to 1/2 by dividing numerator and denominator by 5.
The answer is D. a1=2 an=an-1+3
Answer:
-64
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Answer: 
Step-by-step explanation:
1) Reorder the terms: 

2) Solving: 
3) Add -34 to each side of the equation: 
4) Combine like terms: 34 + -34 = 0: 

5) Combine like terms: 47 + -34 = 13: 
6) Divide each side by -10: 